Research from the Swedish National Road and Transport Research Institute (VTI) warns that gravel left on roads from winter maintenance poses significant accident risks during the spring months of March and April. According to researcher Anna Niska at VTI, accident risks increase for both cyclists and pedestrians during this period.
Niska describes the effect as "a bit like a ball bearing effect," where a downhill slope, a curve, and gravel can create a recipe for a serious bicycle accident. This is particularly problematic in spring when municipalities have not yet had time to clear away winter gravel.
Accident risks increase for both cyclists and pedestrians during March and April
The research indicates that one in five single bicycle accidents in March is linked to gravel, according to reports from P4 Östergötland. The problem affects not only cyclists but also e-scooter users and pedestrians who can encounter difficulties on gravel-covered surfaces.
Niska, who is a research leader at VTI, explains that gravel accumulates during winter and can remain in substantial amounts after snow melts. She recommends that gravel should be swept away as soon as possible in spring, and even removed during longer periods of bare ground in winter to reduce risks.
every fifth single bicycle accident in March is linked to gravel
gravel should be swept away as soon as possible in spring and also removed during longer periods of bare ground in winter to mitigate risks
gravel from cycle paths can contribute to particle pollution in cities when it gets ground down on roads